code: def setUp(self):
      self.data_model = datamodel.DataModel(
          [
              {"field": "name", "type": "String"},
              {"field": "age", "type": "String"},
          ]
      )
  
file_path: dedupe/tests/test_labeler.py
imports: import random
  import unittest
  import pytest
  from dedupe import datamodel, labeler
  from dedupe._typing import RecordDictPair
label_desc: Use image node_id 1 for calling the ActiveLearningTest obj's underlying member method code with example usage: obj.setUp() without return types